Mathias Alten (1871–1938) was a German- American impressionist painter active in Grand Rapids, Michigan.
Mathias Joseph Alten worked as an artist between 1890 and 1938. Although best known for his land- and seascapes he was also an accomplished portrait, floral, and animal painter. William H. Gerdts, a pre-eminent authority on American regional painting, describes Alten's style as that of a "second-generation Impressionist." Alten studied at the acclaimed Académie Julian and at the Académie Colarossi where he won a gold medal for the best figure drawing. As early in his career as 1905, Alten was being invited to show his paintings in museum exhibits. During his lifetime, his work was exhibited at the National Academy in New York, The Chicago Institute of Art, the Corcoran Gallery in Washington, D.C., the Pennsylvania Academy of the Fine Arts, the Detroit Institute of Art and other smaller venues.
As catalogs from those aforementioned exhibits show, Alten's paintings hung among the works of acclaimed artists such as Childe Hassam, Edward Henry Potthast, Charles Russell, H.O. Tanner, Frederic Remington, O.E. Berninghaus, George Bellows, J.S. Sargent, E.L. Blumenschein, Thomas Eakins, William Merritt Chase and William Wendt – as well as those of his similarly distinguished friends - H.R. Poore of Old Lyme, Connecticut, and E.I. Couse of Taos, New Mexico.